When valve clearance is correct, hold the pivot ball stud in place
with the allen wrench and tighten the rocker arm jam nut.
Tighten the jam nut to 174 in/lbs. torque. After tightening the jam
nut, recheck valve clearance to make sure it did not change.
• Install new valve cover gasket (Part number 0C2979).
• Re-attach the valve cover and torque to 4.8 to 5.5 ft. - lbs.
NOTE:
Start all four screws before tightening or you will not
be able to get all the screws in place. Make sure the valve
cover gasket is in place.
• Re-attach the spark plug wire to the spark plug.
• Repeat the process for the other cylinder.
STORAGE INSTRUCTIONS
This engine should be started at least once a month and run for
at least 10 minutes
. If this cannot be done and the
equipment must be stored for more than 30 days, use the
following guidelines to prepare it for storage.
WARNING:
Never store the engine with the fuel in
the tank indoors or in an enclosed or poorly ventilated
area. Fumes can reach an open flame, spark, or pilot
light as on a furnace, water heater, or clothes dryer
and ignite.
1. Run the engine for about five (5) minutes to warm it.
NOTE:
Alcohol-blended fuel, or “gasohol”, attracts moisture
which can lead to the separation and formation of acids during
storage. This acidic gas can damage internal engine parts.
Methanol, ethanol and grain alcohol all are forms of gasohol. If
you did use “gasohol,” drain the fuel tank, then run the engine
until it stops from lack of fuel.
WARNING:
Drain the fuel into approved container,
outdoors, away from open flame. Be sure the engine is
cool.
NOTE:
Using a fuel additive such as STA-BIL
®
fuel stabilizer,
or an equivalent, will prevent gum deposits from forming in the
engine’s fuel system.
2. While the engine is still warm, drain the oil from the
crankcase. Refill it with fresh oil. See
BEFORE
STARTING ENGINE
on Page 6 for oil
recommendations.
3. Remove spark plug and pour about 1/2 ounce (15ml) of
engine oil into the cylinder. Crank slowly to distribute oil.
CAUTION:
Avoid spray from the spark plug hole when
cranking the engine slowly.
4. Install the spark plug. Do not connect the spark plug wire.
5. Clean the dirt, oil and grease from the cylinder, cylinder
head, fins, blower housing, rotating screen and muffler area.
6. Close the fuel shut-off valve.
OTHER STORAGE TIPS
1. Do not store gasoline from one season to another.
2. Replace the gasoline can if it starts to rust. Rust and/or dirt
in gasoline can cause problems.
3. Store the equipment in a clean and dry area.
11
PRODUCT SPECIFICATIONS
MODEL
GTV-GTH-990
GTV-GTH-760
Bore
90mm
90mm
Stroke
78mm
60mm
Valve Clearance
0.05–0.10mm 0.05–0.10mm
(.002–.004 in)
(.002–.004 in)
Displacement
992cc
763cc
Maximum Tilt Angle
15°
15°
While Operating
Weight
(44.5 kg.) (98 lbs.)
(44.5 kg.) (98 lbs.)
OIL CAPACITIES
MODEL
GTV 990 & 760
GTH 990 & 760
Oil Capacity with Oil
2030 ml (2.1 qt.)
1750 ml (1.8 qt.)
Filter
Oil Capacity without
1750 ml (1.8 qt.)
1470 ml (1.5 qt.)
Oil Filter
GTV/GTH - 990/760 OHVI SERIES ENGINES
